Hello,
I bought backup server (check signature) with 4x Seagate Exos X14 12TB SAS drives and fast formatted them to 4096 bytes sector size and updated latest firmware.
I know with 4 disks (2 vdevs) write speed is really slow, i'm going to by 4 more drives.
I am clueless about optimal record and block settings
Current settings:
TrueNas Pool record size: 1 MiB
16TB zvol with lz4 compression on, dedup off.
iscsi logical block size: 512
2x 10G iscsi mpio with round robin iops 1 setting in vSphere.
vSphere VMFS 6.82: 512 format , thick privision, block size 1MB (cannot change), space reclamation granularity 1MB (cannot change)
Everything works but even when Veeam does incremental backup and only transfers 20GB, it's quite slow (30-112MB/s).
Max Veeam read speed is 643MB/s and Processing rate 304MB/s.
Veeam is virtual machine (8 vcores, 12GB Ram) and i attached this storage as D drive, so it looks like local drive.
Backup Proxy max concurrent tasks: 8
Backup Repository maximum concurrent tasks to 4
Use per-VM backup files on.
Backup job storage optimization: Local target
Other possibility is to replicate from shared storage to backup server.
I apologize that i have multiple questions but I wanted to show big picture.
I bought backup server (check signature) with 4x Seagate Exos X14 12TB SAS drives and fast formatted them to 4096 bytes sector size and updated latest firmware.
I know with 4 disks (2 vdevs) write speed is really slow, i'm going to by 4 more drives.
I am clueless about optimal record and block settings
Current settings:
TrueNas Pool record size: 1 MiB
16TB zvol with lz4 compression on, dedup off.
iscsi logical block size: 512
2x 10G iscsi mpio with round robin iops 1 setting in vSphere.
vSphere VMFS 6.82: 512 format , thick privision, block size 1MB (cannot change), space reclamation granularity 1MB (cannot change)
Everything works but even when Veeam does incremental backup and only transfers 20GB, it's quite slow (30-112MB/s).
Max Veeam read speed is 643MB/s and Processing rate 304MB/s.
Veeam is virtual machine (8 vcores, 12GB Ram) and i attached this storage as D drive, so it looks like local drive.
Backup Proxy max concurrent tasks: 8
Backup Repository maximum concurrent tasks to 4
Use per-VM backup files on.
Backup job storage optimization: Local target
Other possibility is to replicate from shared storage to backup server.
I apologize that i have multiple questions but I wanted to show big picture.
Last edited: